

Pololu Ball Caster with 3/8" Metal Ball
This small ball caster uses a 3/8" diameter metal ball. The height of the assembled kit ranges from 0.4" to 0.6".
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Pololu ball caster with 3/8" metal ball with included hardware. |
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This ball caster kit includes a black ABS housing, a 3/8" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of the ball caster, 0.4", can be increased to about 0.6" using the included spacers. The two included #2 screws can be used to mount the ball caster to your chassis (the distance between the screw holes is 0.53").
Note that our ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will probably keep it from rolling well.
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Pololu ball caster
ball diameter |
height with
no spacers |
distance
between screw holes |
weight with
no spacers or screws |
3/8" plastic-ball
|
0.40" | 0.53" | 0.03 oz |
3/8" metal-ball
|
0.40" | 0.53" | 0.14 oz |
1/2" plastic-ball
|
0.53" | 0.58" | 0.07 oz |
1/2" metal-ball
|
0.53" | 0.58" | 0.32 oz |
3/4" plastic-ball
|
0.91" | 0.24" | 0.25 oz |
3/4" metal-ball
|
0.83" | 0.61" | 1.05 oz |
1" plastic-ball
|
1.10" | 0.70" | 0.36 oz |
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Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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Pololu Ball Caster with 3/8" Metal Ball